TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM, Diagnostic DTC:P17A8

DTC Code DTC Name
P17A8 Transfer Shift Motor Control Circuit Circuit Open

DESCRIPTION

This DTC is output when an open circuit in the transfer shift motor drive circuit is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area
P17A8 Transfer Shift Motor Control Circuit Circuit Open

  • Diagnosis Condition: While switching between H2 and H4 or while switching between H4 and L4 (transfer shift motor operating) with the ignition switch turned to ON

  • Malfunction Status: Open circuit in the transfer shift motor drive circuit

  • Malfunction Time: 0.03 seconds or more

  • Other: 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Transfer shift actuator assembly

WIRING DIAGRAM

Refer to DTC P17A9.

Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY)


    1. Disconnect the C61 4 wheel drive control ECU connector.

    2. Disconnect the C74 transfer shift actuator assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      C61-8 (TM1) - C74-2 (TM1) Always Below 1 Ω
      C61-7 (TM2) - C74-1 (TM2) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR)


    1. Disconnect the C74 transfer shift actuator assembly connector.

    2. B003KCNC02
      *a

      Component without harness connected

      (Transfer Shift Actuator Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (TM1) - 1 (TM2) Always 1.5 to 10 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    NG

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here